首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   8664篇
  免费   296篇
财政金融   1693篇
工业经济   724篇
计划管理   1491篇
经济学   1880篇
综合类   104篇
运输经济   82篇
旅游经济   180篇
贸易经济   1738篇
农业经济   327篇
经济概况   690篇
信息产业经济   1篇
邮电经济   50篇
  2023年   59篇
  2022年   34篇
  2021年   72篇
  2020年   135篇
  2019年   197篇
  2018年   207篇
  2017年   242篇
  2016年   259篇
  2015年   191篇
  2014年   241篇
  2013年   991篇
  2012年   335篇
  2011年   343篇
  2010年   310篇
  2009年   362篇
  2008年   328篇
  2007年   298篇
  2006年   260篇
  2005年   219篇
  2004年   241篇
  2003年   255篇
  2002年   214篇
  2001年   195篇
  2000年   189篇
  1999年   176篇
  1998年   182篇
  1997年   162篇
  1996年   154篇
  1995年   149篇
  1994年   129篇
  1993年   105篇
  1992年   115篇
  1991年   110篇
  1990年   112篇
  1989年   99篇
  1988年   81篇
  1987年   76篇
  1986年   90篇
  1985年   125篇
  1984年   107篇
  1983年   84篇
  1982年   129篇
  1981年   76篇
  1980年   81篇
  1979年   66篇
  1978年   60篇
  1977年   54篇
  1976年   50篇
  1975年   39篇
  1973年   32篇
排序方式: 共有8960条查询结果,搜索用时 15 毫秒
151.
This paper offers an explanation for the rise of the factory system in Britain during the Industrial Revolution (1770-1850) based on the concept of complementarity: Investment in machinery, process supervision, and improved quality control formed a cluster of complementary activities in which adopting any one increased the marginal return to also adopting the others. Further, factory owners introduced process supervision not only to increase work effort, but also to balance worker incentives among production, quality control, and asset maintenance tasks. To test this hypothesis, I have constructed a new data set from firm studies and archival records. Measures of firms’ adoption of the activities are positively correlated in the cross-section of firms, providing evidence in favor of the complementarity hypothesis.  相似文献   
152.
The U.S. Departments of Agriculture and Energyjointly analyzed the economic potential for,and impacts of, large-scale bioenergy cropproduction in the United States. Anagricultural sector model (POLYSYS) wasmodified to include three potential bioenergycrops (switchgrass, hybrid poplar, and willow). At farmgate prices of US $2.44/GJ, anestimated 17 million hectares of bioenergycrops, annually yielding 171 million dry Mg ofbiomass, could potentially be produced at aprofit greater than existing agricultural usesfor the land. The estimate assumes highproductivity management practices are permittedon Conservation Reserve Program lands. Traditional crops prices are estimated toincrease 9 to 14 percent above baseline pricesand farm income increases annually by US $6.0billion above baseline.At farmgate prices of US $1.83/GJ, anestimated 7.9 million hectares of bioenergycrops, annually yielding 55 million dry Mg ofbiomass, could potentially be produced at aprofit greater than existing agricultural usesfor the land. The estimate assumes managementpractices intended to achieve highenvironmental benefits on Conservation ReserveProgram lands. Traditional crops prices areestimated to increase 4 to 9 percent abovebaseline prices and farm income increasesannually by US $2.8 billion above baseline.  相似文献   
153.
Significant increases in atmospheric carbon dioxide are occuring as a result of fossil fuel combustion. More than a four-fold increase over preindustrial levels may occur by the year 2100. Heating of the atmosphere, changes in precipitation patterns and global storm paths, and other resulting effects are sure to cause significant social changes. This article is essentially a methodological case study demonstrating a useful but inexpensive type of technology assessment. It summarizes current research findings on “the CO2 effect,” and presents hitherto unpublished findings that resulted from a brief but systems-oriented approach. These findings suggest that most published forecasts of phenomena associated with a CO2 buildup may be systematically low because various positive feedback relationships are not reflected.  相似文献   
154.
This paper extends the work by Morris and Shin (Am. Econom. Rev. 88 (1998) 587-597) where multiple equilibria in the self-fulfilling currency attack models can be reduced to a unique equilibrium when agents observe fundamentals privately with small errors. We find that under a more general specification with realistic parameters, noisy private observations are generally insufficient to prevent the multiplicity of equilibria. The pivotal role played by the transparency of fundamentals/policies in currency crisis is also examined. Surprisingly, transparency may trigger rather than eliminate currency crises when fundamentals are relatively healthy. Our results may be relevant to research in other coordination problems.  相似文献   
155.
In the Irish context of national partnership and the promotion of workplace partnership at firm level, unions might be expected to have achieved, at least, a pragmatic acceptance by employers. Using a survey of full‐time union officials in eight trade unions organising in the private sector, this paper reports their experiences of recent recognition campaigns. Employer opposition appears to have intensified, and in a substantial percentage of cases has involved the victimisation of activists. In facilitating employees to make a free choice regarding union representation, the Codes of Practice and the Industrial Relations Amendment Act 2001 are regarded by the majority of officials as inadequate. A majority of officials favoured the introduction of a statutory right to recognition. Non‐union firms appear as ‘free riders’ that have enjoyed the benefits of national partnership but evaded the compromises and concessions that necessarily characterise such agreements. If left unchecked, the free‐rider phenomenon could undermine the institutional framework on which partnership is based.  相似文献   
156.
Financing Transit Systems Through Value Capture   总被引:1,自引:0,他引:1  
A bstract .   Much of the literature on value capture reports empirical findings on the incidence of rising land values related to distance from a transit stop following the installation of rail transit improvements. This annotated bibliography shows that the elevated value effects of transit access are well documented. The authors maintain that it is now time for transit/land-use research to move from hypothesis testing to practical applications of value capture . Longitudinal models can help predict land-value increments over a period of time, yielding estimates of the total capturable revenues that would support the debt financing of transit improvement projects.  相似文献   
157.
For the maintenance and development of a disaggregated econometric model, the present paper deals with some aspects related to the identification of important intermediate transactions. First, some methodological aspects related to earlier works are discussed. By comparing the properties of different selection methods based on the recent West German input–output table, the calculations confirm the common finding that the necessary level of endogenization can be bounded meaningfully by an a priori investiga tion of the intersectoral transactions. This is also valid if the selection method considers restrictions that deal with the consistence of input–output tables and if some broader error criteria are applied. The main result of the empirical applications seems to be that some attention should be paid to temporal changes of important coefficients.  相似文献   
158.
Abstract . An empirical analysis of the property crimes, robbery, burglary and larceny, is presented for all 120 counties in Kentucky. While this analysis is based on an economic model of crime, certain sociological and legal variables are included as well in the system of equations. Overall, the empirical results support prior studies’findings with the exception that a quadratic relationship is found to exist between urbanization and each of the property crimes. Furthermore, neither the economic nor the non economic influences measured appear more important for affecting crime rates. Specifically, results indicate that the level of poverty, the degree of tourism, the presence of police, the unemployment rate and the apprehension rate all affect property crimes. In contrast, the length of sentence, the degree of industrialization, the level of public assistance payments and the proportion of youth in the county have no affect on property crime rates in these areas.  相似文献   
159.
This article identifies key features of the strategy concept as a basis for reviewing existing theories of strategy. It also provides an agenda for future research. the article argues that there is a decision hierarchy in a firm, and defines strategy as the highest-level decision in the hierarchy. Consequently, strategy has to exhibit what may be called three features of dominance: vertical dominance, horizontal dominance, and dynamic dominance. A vertically dominant strategy is one that determines, directly or indirectly, other decisions of a firm. A horizontally dominant strategy seeks to optimize the value of the firm according to some criteria. Dynamic dominance implies that strategy should affect the subsequent decisions of a firm over a relevant period of time. With few exceptions, existing theories of strategy are issue-oriented and focus largely on horizontal dominance. More research should, therefore, be directed towards vertical and dynamic dominance criteria. If a comprehensive theory of strategy which satisfies the three dominance features cannot be developed, it is suggested that development should be directed towards integrating behavioural and economic approaches.  相似文献   
160.
South Korea is a remarkable macroeconomic success story, but it has performed relatively poorly in one respect: the provision of high quality housing at reasonable prices. This paper analyzes the Korean housing market and the market for related inputs, with special emphasis on the regulatory environment.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号